API performance acting weird

[HttpGet("{productId:guid}/all")]
    public async Task<IActionResult> GetLicensesOnProduct(Guid productId)
    {
        var licenses = await licenseService.GetLicensesOnProduct(productId);
        var response = licenses.Select(license => new LicenseResponse(
            license.Id,
            license.Key,
            license.Duration,
            license.Note,
            license.DurationUnit,
            license.Role,
            license.CreatedByInternalUserId,
            license.UserId,
            license.CreatedOnUtc,
            license.RedeemedOnUtc,
            license.ExpirationDate,
            license.Type,
            license.State));

        return Ok(response);
    }

    public async Task<IEnumerable<License>> GetLicensesOnProduct(Guid productId)
    {
        var product = await productRepository.GetByIdAsync(productId);
        if (product is null)
        {
            throw new ProductNotFoundException(productId);
        }

        var licenses = await licenseRepository.GetAllAsync(productId);
        return licenses;
    }

    public async Task<IEnumerable<License>> GetAllAsync(Guid productId, CancellationToken cancellationToken = default)
    {
        return await dbContext.Set<License>()
            .Where(l => l.ProductId == productId)
            .ToListAsync(cancellationToken);
    }